package com.wc.alorithm_luogu.B3624_猫粮规划;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.StringTokenizer;

/**
 * @Author congge
 * @Date 2024/3/1 9:08
 * @description
 */
public class Main1 {
    static FastReader sc = new FastReader();
    static PrintWriter out = new PrintWriter(System.out);
    static int M = 310;
    static int[] f = new int[M];
    static int n, w, l, r;

    public static void main(String[] args) {
        n = sc.nextInt();
        l = sc.nextInt();
        r = sc.nextInt();
        f[0] = 1;
        while (n-- > 0) {
            w = sc.nextInt();
            for (int i = r; i >= w; i--) {
                f[i] += f[i - w];
            }
        }
        int res = 0;
        for(int i = l; i <= r; i++){
            res += f[i];
        }

        out.println(res);
        out.flush();
    }

    static class FastReader {
        StringTokenizer st;
        BufferedReader br;

        FastReader() {
            br = new BufferedReader(new InputStreamReader(System.in));
        }

        String next() {
            while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        }

        int nextInt() {
            return Integer.parseInt(next());
        }

        String nextLine() {
            String s = "";
            try {
                s = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return s;
        }

        long nextLong() {
            return Long.parseLong(next());
        }

        double nextDouble() {
            return Double.parseDouble(next());
        }

        // 是否由下一个
        boolean hasNext() {
            while (st == null || !st.hasMoreTokens()) {
                try {
                    String line = br.readLine();
                    if (line == null)
                        return false;
                    st = new StringTokenizer(line);
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
            return true;
        }
    }
}

